5-4
P/N 11934-003
Section 5
Cirrus Design
Performance Data
SR20
Flight Planning
The performance tables in this section present sufficient information to
predict airplane performance with reasonable accuracy. However,
variations in fuel metering, mixture leaning technique, engine &
propeller condition, air turbulence, and other variables encountered
during a particular flight may account for variations of 10% or more in
range and endurance. Therefore, utilize all available information to
estimate the fuel required for a particular flight.
• Note •
Whenever possible, select the most conservative values from
the following charts to provide an extra margin of safety and to
account for events that could occur during a flight.
Sample Problem
The following sample flight problem uses information derived from the
airplane performance charts and tables to determine the predicted
performance for a typical flight.
The first step in flight planning is to determine the aircraft weight and
center of gravity, as well as information about the flight. For this
sample problem, the following information is known:
Airplane Configuration:
• Takeoff weight........................................................ 3000 Pounds
• Usable fuel.................................................................56 Gallons
Takeoff Conditions:
• Field pressure altitude ................................................1750 Feet
•
Temperature ................................................25
°
C (ISA + 13
°
C)
• Wind component along runway ......................11 knot headwind
• Runway Condition ............................................Dry, level, paved
• Field length .................................................................3000 Feet
Cruise Conditions:
• Total distance................................................ 560 Nautical Miles
• Pressure altitude.........................................................6500 Feet
•
Temperature ................................................20
°
C (ISA + 17
°
C)
Reissue A
Содержание SR20
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